- Date
- May 31, 2010, 09:45 local (16:45 UTC)
- Place
- Chandler, AZ
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N6075LGreat Lakes 2T-1A-2
- Defining event
- Landing-landing roll: Loss of control on ground
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 22, 2010
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20100531005549A
- Case key
- 76271
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot’s failure to maintain directional control and the flight instructor's inadequate remedial action during the landing roll, which resulted in a ground loop.
Findings · 4
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
After performing air work, the certificated flight instructor (CFI) and airline transport pilot (ATP) returned back to the airport where the ATP would conduct touch-and-go practice takeoffs and landings in the tailwheel-equipped airplane. The first three landings were uneventful and they had planned for the fourth to be a full stop with the airplane configured for a three-point landing. Following a normal approach and touchdown, the airplane was on the landing roll when it suddenly turned to the left 30 degrees relative to the runway centerline. Both pilots applied full right rudder, but the airplane continued the left turn and exited the runway surface. The airplane ground looped, coming to rest facing approximately 270 degrees from the runway centerline. The pilots both reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine.
Factual narrative
In a written statement, the certificated flight instructor (CFI) reported that the purpose of the flight was for him to conduct an aerobatic lesson with the airline transport pilot (ATP) in a tail wheel-equipped airplane. After performing air work, the pilots returned back to the airport and the ATP decided to try touch-and-go practice takeoffs and landings. The first three landings were uneventful and he had planned for the fourth to be a full stop with the airplane configured for a three-point landing. Following a normal approach and touchdown, the airplane was on the landing roll when it suddenly turned to the left 30 degrees relative to the runway centerline. Both pilots applied full right rudder, but the airplane continued the left turn. The CFI attempted to apply light right brake pressure but the airplane exited the left side of the runway and ground looped. The airplane came to a rest facing approximately 270 degrees from the runway centerline; during the accident sequence, damage was incurred to the right wing tip and left aileron. The pilots both reported that there were no pre impact mechanical failures or malfunctions with the airframe or engine.
Aircraft
- Registration
- N6075L
- Reported as
- Great Lakes 2T-1A-2
- Category
- Airplane
- Serial number
- 0716
- Airframe hours
- 9,093
- Engine
- Lycoming AEIO-360 SER, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- Chandler Air Service Inc
- Registered owner
- Chandler Air Service Inc
- Airworthiness certificate
- Standard, Aerobatic; Standard, Normal
- Last inspection
- 100 hour · March 13, 2010
- Departed
- KCHD · Chandler, AZ
- Destination
- KCHD · Chandler, AZ
- Airport
- KCHD · Chandler Municipal Airport, runway 22L, 4,800 × 75 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew · 2
As NTSB recorded them. NTSB leaves out names.
- Role
- Flight instructor
- Age
- 59
- Injuries
- None
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- June 18, 2009
- Seat
- Front
- Flight hours
- 6,264 total · 500 in this make and model · 6,050 as pilot in command · 270 in the last 90 days · 90 in the last 30 days · 5 in the last 24 hours
- Role
- Pilot
- Age
- 68
- Injuries
- None
- Certificates
- Airline transport, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- March 3, 2010
- Seat
- Rear
- Flight hours
- 4,788 total · 13 in this make and model · 4,300 as pilot in command · 22 in the last 90 days · 8 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 35 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F, dew point 36 °F
- Altimeter
- 29.93 inHg
- Observed at
- KCHD
Docket · 1
The files NTSB released with the investigation on June 18, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 461 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.